EP2916140A3 - Mimo antenna with improved grating lobe characteristics - Google Patents

Mimo antenna with improved grating lobe characteristics Download PDF

Info

Publication number
EP2916140A3
EP2916140A3 EP15156147.9A EP15156147A EP2916140A3 EP 2916140 A3 EP2916140 A3 EP 2916140A3 EP 15156147 A EP15156147 A EP 15156147A EP 2916140 A3 EP2916140 A3 EP 2916140A3
Authority
EP
European Patent Office
Prior art keywords
antenna
transmit antenna
mimo antenna
target
grating lobe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15156147.9A
Other languages
German (de)
French (fr)
Other versions
EP2916140A2 (en
Inventor
Stephen W. Alland
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Delphi Technologies Inc filed Critical Delphi Technologies Inc
Publication of EP2916140A2 publication Critical patent/EP2916140A2/en
Publication of EP2916140A3 publication Critical patent/EP2916140A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/003—Bistatic radar systems; Multistatic radar systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/42—Simultaneous measurement of distance and other co-ordinates
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/42—Simultaneous measurement of distance and other co-ordinates
    • G01S13/44—Monopulse radar, i.e. simultaneous lobing
    • G01S13/4463—Monopulse radar, i.e. simultaneous lobing using phased arrays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/28—Details of pulse systems
    • G01S7/2813—Means providing a modification of the radiation pattern for cancelling noise, clutter or interfering signals, e.g. side lobe suppression, side lobe blanking, null-steering arrays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/206—Microstrip transmission line antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H01Q21/065—Patch antenna array
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S2013/0236—Special technical features
    • G01S2013/0245—Radar with phased array antenna

Abstract

A multiple input multiple output (MIMO) antenna (110, 210, 410, 510, 610, 710) for a radar system that includes a first transmit antenna (122, 222, 422, 522, 622, 722), a second transmit antenna (124, 224, 424, 524, 624, 724), and a receive antenna (120, 220, 420, 520, 620, 720). The first transmit antenna is configured to emit a first radar signal toward a target. The first transmit antenna is formed of a first vertical array (132, 232) of radiator elements (136, 236). The second transmit antenna is configured to emit a second radar signal toward the target. The second transmit antenna (110) is formed of a second vertical array (134, 234) of radiator elements (136, 236) distinct from the first vertical array (132). The receive antenna is configured to detect radar signals reflected by a target toward the receive antenna. The receive antenna is formed of a plurality of paired vertical arrays (250) of detector elements (252).
EP15156147.9A 2014-03-05 2015-02-23 Mimo antenna with improved grating lobe characteristics Withdrawn EP2916140A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14/197,417 US20150253419A1 (en) 2014-03-05 2014-03-05 Mimo antenna with improved grating lobe characteristics

Publications (2)

Publication Number Publication Date
EP2916140A2 EP2916140A2 (en) 2015-09-09
EP2916140A3 true EP2916140A3 (en) 2015-09-16

Family

ID=52544378

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15156147.9A Withdrawn EP2916140A3 (en) 2014-03-05 2015-02-23 Mimo antenna with improved grating lobe characteristics

Country Status (3)

Country Link
US (1) US20150253419A1 (en)
EP (1) EP2916140A3 (en)
CN (1) CN104901022A (en)

Families Citing this family (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10439283B2 (en) * 2014-12-12 2019-10-08 Huawei Technologies Co., Ltd. High coverage antenna array and method using grating lobe layers
US9893435B2 (en) * 2015-02-11 2018-02-13 Kymeta Corporation Combined antenna apertures allowing simultaneous multiple antenna functionality
JP6396244B2 (en) 2015-03-25 2018-09-26 パナソニック株式会社 Radar equipment
US9666937B2 (en) * 2015-06-29 2017-05-30 Waymo Llc LTE MIMO antenna system for automotive carbon fiber rooftops
CN114185042A (en) * 2015-09-17 2022-03-15 松下电器产业株式会社 Radar apparatus
EP3156817B8 (en) * 2015-10-12 2019-01-09 Aptiv Technologies Limited Mimo radar antenna for detecting an angle of elevation
CN105356069B (en) * 2015-11-28 2018-12-04 成都安智杰科技有限公司 A kind of raising method and antenna structure of the trailer-mounted radar measurement angle without fuzzy ranges
CN105406181A (en) * 2015-12-04 2016-03-16 福建星网锐捷网络有限公司 Monopole antenna and multi-input-multiple-output antenna
CN105589058B (en) * 2016-01-29 2019-05-31 宋春丽 A kind of antenna assembly and three-dimensional radar system
DE102016203160A1 (en) * 2016-02-29 2017-08-31 Robert Bosch Gmbh Radar system comprising an antenna arrangement for transmitting and receiving electromagnetic radiation
US9869762B1 (en) * 2016-09-16 2018-01-16 Uhnder, Inc. Virtual radar configuration for 2D array
US10403983B2 (en) * 2016-11-28 2019-09-03 Mando Corporation Radar apparatus and antenna apparatus therefor
KR20180060343A (en) * 2016-11-28 2018-06-07 주식회사 만도 Radar Apparatus with Multi-Input Multi-Output Antenna
KR102647693B1 (en) * 2016-11-28 2024-03-15 주식회사 에이치엘클레무브 Radar Apparatus and Error Correction Method thereof
US20180159246A1 (en) * 2016-12-05 2018-06-07 GM Global Technology Operations LLC Modular architecture of the mimo radar
JP6788685B2 (en) * 2016-12-07 2020-11-25 株式会社フジクラ Antenna device
US20180166794A1 (en) * 2016-12-14 2018-06-14 GM Global Technology Operations LLC 2d-mimo radar antenna array geometry and design method
DE102016224900A1 (en) * 2016-12-14 2018-06-14 Robert Bosch Gmbh MIMO radar sensor for motor vehicles
CN110121656A (en) 2016-12-23 2019-08-13 Iee国际电子工程股份公司 High resolution 3 d radar wave imaging device
EP3559693B1 (en) * 2016-12-23 2020-12-16 IEE International Electronics & Engineering S.A. Time and frequency synchronization for spread radar systems
US10677918B2 (en) * 2017-02-28 2020-06-09 Analog Devices, Inc. Systems and methods for improved angular resolution in multiple-input multiple-output (MIMO) radar
US11412937B2 (en) 2017-03-29 2022-08-16 Texas Instruments Incorporated Multi-person vital signs monitoring using millimeter wave (mm-wave) signals
JP6491254B2 (en) * 2017-03-29 2019-03-27 セコム株式会社 Antenna device and radar device
US11532869B2 (en) 2017-04-27 2022-12-20 Sony Corporation Radar antenna array for three-dimensional imaging
WO2018222556A1 (en) 2017-06-02 2018-12-06 Flir Systems, Inc. Ranging systems and methods with staggered multichannel transducers
EP3413077B1 (en) * 2017-06-09 2020-02-19 Veoneer Sweden AB Enhanced vertical object detection for a vehicle radar system
US10935650B2 (en) * 2017-12-22 2021-03-02 Waymo Llc Radar based three dimensional point cloud for autonomous vehicles
DE102018200751A1 (en) * 2018-01-18 2019-07-18 Robert Bosch Gmbh Radar apparatus and method for operating a radar apparatus
KR101900839B1 (en) * 2018-02-12 2018-09-20 주식회사 에이티코디 Array antenna
DE102018202299A1 (en) * 2018-02-15 2019-08-22 Robert Bosch Gmbh Antenna arrangement for a radar sensor
KR102167097B1 (en) 2018-04-09 2020-10-16 주식회사 만도 Radar Apparatus and Antenna Apparatus therefor
DE102018206535A1 (en) * 2018-04-27 2019-10-31 Robert Bosch Gmbh Radar sensor device
JP7028715B2 (en) * 2018-05-21 2022-03-02 株式会社デンソー Arrival direction estimation device and arrival direction estimation method
DE102018210070A1 (en) * 2018-06-21 2019-12-24 Robert Bosch Gmbh Procedure for calibrating a MIMO radar sensor for motor vehicles
US10886963B2 (en) * 2018-06-26 2021-01-05 The Trustees Of Princeton University System and method for transceiver and antenna programmability and generalized MIMO architectures
IT201800006797A1 (en) * 2018-06-29 2019-12-29 GROUND-BASED SYNTHETIC OPENING RADAR (GBSAR) WITH MULTIPLE TRANSMISSION AND RECEPTION ANTENNAS (MIMO) AND EFFICIENT USE OF THE COMPRESSIVE SENSING (CS) PROCESSING TECHNIQUE.
WO2020017290A1 (en) * 2018-07-20 2020-01-23 京セラ株式会社 Electronic device, electronic device control method, and electronic device control program
KR102276975B1 (en) * 2018-10-25 2021-07-13 주식회사 비트센싱 Radar and antenna built in radar
CN109358322B (en) * 2018-10-25 2020-10-16 森思泰克河北科技有限公司 Forward target detection radar and method
CN109613508A (en) * 2018-12-29 2019-04-12 森思泰克河北科技有限公司 Forward direction target detection radar and method
CN109669166A (en) * 2019-01-08 2019-04-23 长沙莫之比智能科技有限公司 The small-sized MIMO radar sensor of short distance in high-precision wide wave beam
CN113615001A (en) * 2019-03-14 2021-11-05 索尼集团公司 2D electronic beam steered antennas using multiple pre-shaped beams
US11262434B2 (en) * 2019-04-01 2022-03-01 GM Global Technology Operations LLC Antenna array design and processing to eliminate false detections in a radar system
WO2020218808A1 (en) * 2019-04-22 2020-10-29 주식회사 비트센싱 Radar device and antenna device used in radar device
US11047971B2 (en) * 2019-05-20 2021-06-29 GM Global Technology Operations LLC Radar system and control method for use in a moving vehicle
JP7164714B2 (en) * 2019-05-23 2022-11-01 日立Astemo株式会社 radar equipment
US11181614B2 (en) * 2019-06-06 2021-11-23 GM Global Technology Operations LLC Antenna array tilt and processing to eliminate false detections in a radar system
CN112103625B (en) * 2019-06-17 2022-09-27 苏州速感智能科技有限公司 High-isolation and low-sidelobe MassiveMIMO antenna array and array combining method
CN110609279B (en) * 2019-09-25 2022-11-04 上海保隆汽车科技股份有限公司 Algorithm for optimizing angle grating lobe problem
KR102279302B1 (en) * 2019-11-07 2021-07-20 현대모비스 주식회사 Apparatus for vehicle radar and control method the same
JP2021085748A (en) * 2019-11-27 2021-06-03 ソニーセミコンダクタソリューションズ株式会社 Radar device and manufacturing method thereof, and transceiver
US20210181303A1 (en) * 2019-12-16 2021-06-17 Semiconductor Components Industries, Llc Calibrating array antennas based on signal energy distribution as a function of angle
CN112578353A (en) * 2020-02-28 2021-03-30 加特兰微电子科技(上海)有限公司 Device and method for measuring target angle, sensor and equipment
JP7390658B2 (en) 2020-03-18 2023-12-04 パナソニックＩｐマネジメント株式会社 radar equipment
US11860270B2 (en) 2020-04-01 2024-01-02 The Board Of Trustees Of The University Of Alabama Sparse linear array approach in automotive radars using matrix completion
TWI747457B (en) * 2020-08-24 2021-11-21 智易科技股份有限公司 Antenna for suppressing the gain of side lobes
CN111913152A (en) * 2020-09-09 2020-11-10 四川长虹电器股份有限公司 High-power millimeter wave radar
US11888554B2 (en) * 2020-09-23 2024-01-30 Nxp Usa, Inc. Automotive MIMO radar system using efficient difference co-array processor
EP4016127A1 (en) 2020-12-16 2022-06-22 Provizio Limited Multiple input multiple steered output (mimso) radar
KR102288673B1 (en) * 2020-12-28 2021-08-12 주식회사 비트센싱 Radar having antennas arranged in horizontal and vertical intervals
TWI749987B (en) * 2021-01-05 2021-12-11 友達光電股份有限公司 Antenna structure and array antenna module
KR20220118164A (en) * 2021-02-18 2022-08-25 현대자동차주식회사 Antenna Structure for Glass
US11860297B2 (en) * 2021-03-08 2024-01-02 GM Global Technology Operations LLC High resolution unambiguous radar
CN114204282B (en) * 2021-12-07 2024-02-06 中国电子科技集团公司第十四研究所 Large-scale array antenna based on virtual array
CN114267954A (en) * 2021-12-20 2022-04-01 中国电子科技集团公司第十四研究所 Large-scale series-fed microstrip array antenna based on virtual array elements
CN116381663B (en) * 2023-06-02 2023-08-04 北京中建建筑科学研究院有限公司 Grating lobe suppression method, system, equipment and medium for MIMO radar image

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100123616A1 (en) * 2008-11-14 2010-05-20 Toyota Jidosha Kabushiki Kaisha Radar device
DE102010064348A1 (en) * 2010-12-29 2012-07-05 Robert Bosch Gmbh Radar sensor for motor vehicles
DE102012003877A1 (en) * 2011-10-15 2013-04-18 S.M.S Smart Microwave Sensors Gmbh Radar system for a road vehicle with improved calibration capabilities
KR20130115510A (en) * 2012-04-12 2013-10-22 삼성탈레스 주식회사 Multibeam-type rear and side directional radar using mimo signaling method

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008038365A1 (en) * 2008-07-02 2010-01-07 Adc Automotive Distance Control Systems Gmbh Vehicle radar system and method for determining a position of at least one object relative to a vehicle
AU2010200313B2 (en) * 2009-01-30 2015-10-29 Teledyne Uk Limited Apparatus and method for assisting vertical takeoff vehicles
US7986260B2 (en) * 2009-02-18 2011-07-26 Battelle Memorial Institute Circularly polarized antennas for active holographic imaging through barriers
US8289203B2 (en) * 2009-06-26 2012-10-16 Src, Inc. Radar architecture
US8466829B1 (en) * 2009-09-14 2013-06-18 Lockheed Martin Corporation Super-angular and range-resolution with phased array antenna and multifrequency dither
FR2950147B1 (en) * 2009-09-15 2012-07-13 Thales Sa BEAM AGILITY RADAR, IN PARTICULAR FOR THE DETECTION AND OBSTACLE REMOVAL FUNCTION
KR101137088B1 (en) * 2010-01-06 2012-04-19 주식회사 만도 Integrated Radar Apparatus and Integrated Antenna Apparatus
US8797208B2 (en) * 2010-12-13 2014-08-05 Sony Corporation Active radar system and method
US9121943B2 (en) * 2011-05-23 2015-09-01 Sony Corporation Beam forming device and method
US9203160B2 (en) * 2011-12-21 2015-12-01 Sony Corporation Antenna arrangement and beam forming device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100123616A1 (en) * 2008-11-14 2010-05-20 Toyota Jidosha Kabushiki Kaisha Radar device
DE102010064348A1 (en) * 2010-12-29 2012-07-05 Robert Bosch Gmbh Radar sensor for motor vehicles
DE102012003877A1 (en) * 2011-10-15 2013-04-18 S.M.S Smart Microwave Sensors Gmbh Radar system for a road vehicle with improved calibration capabilities
KR20130115510A (en) * 2012-04-12 2013-10-22 삼성탈레스 주식회사 Multibeam-type rear and side directional radar using mimo signaling method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
BROOKNER ELI: "MIMO radar demystified and where it makes sense to use", 2013 IEEE INTERNATIONAL SYMPOSIUM ON PHASED ARRAY SYSTEMS AND TECHNOLOGY, IEEE, 15 October 2013 (2013-10-15), pages 399 - 407, XP032562863, DOI: 10.1109/ARRAY.2013.6731862 *
RANKIN G A ET AL: "Radar imaging: Conventional and MIMO", COMMUNICATIONS AND ELECTRONICS (ICCE), 2012 FOURTH INTERNATIONAL CONFERENCE ON, IEEE, 1 August 2012 (2012-08-01), pages 171 - 176, XP032245515, ISBN: 978-1-4673-2492-2, DOI: 10.1109/CCE.2012.6315892 *

Also Published As

Publication number Publication date
EP2916140A2 (en) 2015-09-09
US20150253419A1 (en) 2015-09-10
CN104901022A (en) 2015-09-09

Similar Documents

Publication Publication Date Title
EP2916140A3 (en) Mimo antenna with improved grating lobe characteristics
EP3309577A3 (en) Radar apparatus
WO2015175078A3 (en) Object tracking via radio reflections
WO2016174679A3 (en) System and methods for calibrating an antenna array using targets
WO2020106849A3 (en) Object sensing from a potentially moving frame of reference with virtual apertures formed from sparse antenna arrays
MX2016002526A (en) Digital beamforming based resolution of out-of-path targets showing up as in-path due to grating lobes in array antenna radars.
EP2953272A3 (en) Low effort massive mimo antenna arrays and their use
EP3842822A3 (en) Multi sensor radio frequency detection
IL278440B2 (en) Phased array antenna system
WO2017021950A3 (en) System and method for measuring soil properties characteristics using electromagnetic propagation
EP3691033A4 (en) Optical phased array antenna and lidar including same
EP3997477A4 (en) Optical antenna, optical phased array transmitter, and lidar system using the same
CY1120527T1 (en) METHOD AND SYSTEM OF REMOTE MONITORING / THREE-DIMENSION TRANSFER AND VOLTAGE / CONSTRUCTION Vibrations
WO2015136100A3 (en) Optoelectronic modules operable to recognize spurious reflections and to compensate for errors caused by spurious reflections
EP3394958A4 (en) Phased array antenna having sub-arrays
DE502007007062D1 (en) HIGH-RESOLUTION SYNTHETIC APERTURE SIDE-SIDE RADAR SYSTEM USING DIGITAL BEAMFORMING
WO2006110262A3 (en) Positioning system with a sparse antenna array
WO2013128301A3 (en) Clutter suppression in ultrasonic imaging systems
SG11202011422YA (en) Millimeter wave phased array
EP3794679A4 (en) Electronically beam-steerable full-duplex phased array antenna
EP3392969A4 (en) Phased array antenna
JP2015509674A5 (en)
EP3830605A4 (en) Antenna array with square wave signal steering
EP3131212A3 (en) Systems and methods of analog beamforming for direct radiating phased array antennas
CA2887073C (en) Array antenna

Legal Events

Date Code Title Description
PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIC1 Information provided on ipc code assigned before grant

Ipc: G01S 7/03 20060101AFI20150807BHEP

Ipc: G01S 13/42 20060101ALI20150807BHEP

Ipc: H01Q 13/20 20060101ALI20150807BHEP

Ipc: G01S 13/44 20060101ALI20150807BHEP

Ipc: H01Q 21/06 20060101ALI20150807BHEP

Ipc: H01Q 21/28 20060101ALI20150807BHEP

Ipc: G01S 13/93 20060101ALI20150807BHEP

Ipc: H01Q 21/08 20060101ALI20150807BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20160317